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END MILLS
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FRACTIONAL
Z-Carb
Series
Z1, Z1B, Z16CR
Fractional
Hardness
Ap
Ae
Ae
Vc
(sfm)
Diameter (D
1
)
(inch)
Ae x D
1
Ap x D
1
1/8
1/4
3/8
1/2
5/8
3/4
1
P
CARBON STEELS
1018, 1040, 1080,
1090, 10L50, 1140,
1212, 12L15, 1525,
1536
≤ 275 Bhn
or
≤ 28 HRc
Profile
≤ 0.5
≤ 1.5
555
RPM 16961
8480
5654
4240
3392
2827
2120
(444-666)
Fz
0.0004 0.0010 0.0019 0.0025 0.0031 0.0032 0.0035
Feed (ipm)
25.8
33.9
43.0
42.4
42.1
36.5
29.7
Slot
1
≤ 1
440
RPM 13446
6723
4482
3362
2689
2241
1681
(352-528)
Fz
0.0004 0.0010 0.0019 0.0025 0.0031 0.0032 0.0035
Feed (ipm)
20.4
26.9
34.1
33.6
33.3
29.0
23.5
ALLOY STEELS
4140, 4150, 4320,
5120, 5150, 8630,
86L20, 50100
≤ 375 Bhn
or
≤ 40 HRc
Profile
≤ 0.5
≤ 1.5
315
RPM 9626
4813
3209
2407
1925
1604
1203
(252-378)
Fz
0.0003 0.0008 0.0014 0.0019 0.0024 0.0025 0.0027
Feed (ipm)
10.8
15.4
18.0
18.3
18.5
16.0
13.0
Slot
1
≤ 1
250
RPM 7640
3820
2547
1910
1528
1273
955
(200-300)
Fz
0.0003 0.0008 0.0014 0.0019 0.0024 0.0025 0.0027
Feed (ipm)
8.6
12.2
14.3
14.5
14.7
12.7
10.3
H
TOOL STEELS
A2, D2, H13, L2, M2,
P20, S7, T15, W2
≤ 375 Bhn
or
≤ 40 HRc
Profile
≤ 0.5
≤ 1.5
185
RPM 5654
2827
1885
1413
1131
942
707
(148-222)
Fz
0.0002 0.0005 0.0010 0.0013 0.0016 0.0017 0.0018
Feed (ipm)
4.5
5.7
7.5
7.3
7.2
6.4
5.1
Slot
1
≤ 1
145
RPM 4431
2216
1477
1108
886
739
554
(116-174)
Fz
0.0002 0.0005 0.0010 0.0013 0.0016 0.0017 0.0018
Feed (ipm)
3.5
4.4
5.9
5.8
5.7
5.0
4.0
K
CAST IRONS
(LOW & MEDIUM
ALLOY)
Gray, Malleable,
Ductile
≤ 220 Bhn
or
≤ 19 HRc
Profile
≤ 0.5
≤ 1.5
445
RPM 13599
6800
4533
3400
2720
2267
1700
(356-534)
Fz
0.0004 0.0010 0.0018 0.0024 0.0030 0.0031 0.0034
Feed (ipm)
19.0
27.2
32.6
32.6
32.6
28.1
23.1
Slot
1
≤ 1
355
RPM 10849
5424
3616
2712
2170
1808
1356
(284-426)
Fz
0.0004 0.0010 0.0018 0.0024 0.0030 0.0031 0.0034
Feed (ipm)
15.2
21.7
26.0
26.0
26.0
22.4
18.4
CAST IRONS
(HIGH ALLOY)
Gray, Malleable,
Ductile
≤ 260 Bhn
or
≤ 26 HRc
Profile
≤ 0.5
≤ 1.5
340
RPM 10390
5195
3463
2598
2078
1732
1299
(272-408)
Fz
0.0003 0.0007 0.0014 0.0018 0.0023 0.0024 0.0025
Feed (ipm)
12.5
14.5
19.4
18.7
19.1
16.6
13.0
Slot
1
≤ 1
270
RPM 8251
4126
2750
2063
1650
1375
1031
(216-324)
Fz
0.0003 0.0007 0.0014 0.0018 0.0023 0.0024 0.0025
Feed (ipm)
9.9
11.6
15.4
14.9
15.2
13.2
10.3
M
STAINLESS STEELS
(FREE MACHINING)
303, 416, 420F,
430F, 440F
≤ 275 Bhn
or
≤ 28 HRc
Profile
≤ 0.5
≤ 1.5
490
RPM 14974
7487
4991
3744
2995
2496
1872
(392-588)
Fz
0.0003 0.0007 0.0014 0.0018 0.0023 0.0024 0.0025
Feed (ipm)
18.0
21.0
28.0
27.0
27.6
24.0
18.7
Slot
1
≤ 1
390
RPM 11918
5959
3973
2980
2384
1986
1490
(312-468)
Fz
0.0003 0.0007 0.0014 0.0018 0.0023 0.0024 0.0025
Feed (ipm)
14.3
16.7
22.2
21.5
21.9
19.1
14.9
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